Observation information
- date-obs: 2017-08-14
- time-obs: 10:20:51.309300000
- date-end: 2017-08-14
- time-end: 12:17:25.310100000
- obs_id: A03_039T01_9000001462
- exposure: 4994.12118401
- sourceid: 4U 1735-44
- observer: anjali
- ra_pnt: 264.7429
- dec_pnt: -44.45
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_039T01_9000001462_10159cztM0_level2.evt
| modeM0/AS1A03_039T01_9000001462_10159cztM0_level2_quad_clean.evt
|
| Size (bytes) | 424,584,000 | 104,451,840 |
| Size | 404.9 MB
| 99.6 MB
|
| Events in quadrant A | 2,900,448 | 696,814 |
| Events in quadrant B | 3,114,968 | 704,855 |
| Events in quadrant C | 2,755,433 | 698,050 |
| Events in quadrant D | 3,697,003 | 661,894 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 116 | 0 |
| B | 0 | 116 | 0 |
| C | 0 | 116 | 0 |
| D | 0 | 116 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12306 | 12 |
| B | 0 | 12933 | 4 |
| C | 0 | 12043 | 7 |
| D | 0 | 14716 | 7 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5749 | 80 | 1.391546% |
| B | 5753 | 93 | 1.616548% |
| C | 5751 | 64 | 1.112850% |
| D | 5751 | 165 | 2.869066% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 6994 | 5754 | 3 | 3 | 0.04% | 0.05% |  |
| B | 6994 | 5754 | 7 | 7 | 0.10% | 0.12% |  |
| C | 6994 | 5754 | 0 | 0 | 0.00% | 0.00% |  |
| D | 6994 | 5754 | 85 | 85 | 1.22% | 1.48% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 15 | 223 | 26356 | 173.99 | 732 | 718 | 147.4 |
| A | 15 | 174 | 23531 | 154.82 | 732 | 718 | 147.4 |
| A | 8 | 15 | 15238 | 98.54 | 732 | 718 | 147.4 |
| B | 0 | 214 | 78594 | 570.96 | 727 | 712 | 136.4 |
| B | 4 | 81 | 69487 | 504.2 | 727 | 712 | 136.4 |
| B | 0 | 219 | 60026 | 434.84 | 727 | 712 | 136.4 |
| C | 14 | 67 | 10977 | 63.89 | 703 | 708 | 160.7 |
| C | 13 | 61 | 5344 | 28.84 | 703 | 708 | 160.7 |
| C | 14 | 234 | 3698 | 18.6 | 703 | 708 | 160.7 |
| D | 8 | 195 | 397710 | 2392.62 | 701 | 683 | 165.9 |
| D | 1 | 52 | 299384 | 1800.07 | 701 | 683 | 165.9 |
| D | 2 | 152 | 118304 | 708.82 | 701 | 683 | 165.9 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |